Tracking Down the Highest Spindown Power Gamma-ray Pulsars
X. Hou, D. Dumora, M. Lemoine-Goumard, M.-H.Grondin, D.A. Smith, (for the Fermi Large Area Telescope Collaboration, for the Fermi Pulsar, Timing Consortium)
TL;DR
This paper identifies and analyzes high spindown power gamma-ray pulsars using Fermi LAT data, aiming to discover new gamma-ray sources and update pulsar population distributions.
Contribution
It introduces a method to select promising gamma-ray pulsar candidates based on a figure-of-merit and provides new timing and spectral analysis results for several high spindown power pulsars.
Findings
Identification of new high spindown power gamma-ray pulsars
Updated population distribution plots for gamma-ray pulsars
Enhanced understanding of gamma-ray detectability factors
Abstract
Forty six gamma-ray pulsars were reported in the First Fermi Large Area Telescope (LAT) Catalog of Gamma-ray Pulsars. Over forty more have been seen since then. A simple but effective figure-of-merit for gamma-detectability is sqrt(Edot)/d^2, where Edot is the pulsar spindown power and d the distance. We are tracking down the best gamma-ray candidates not yet seen. We present the timing and spectral analysis results of some new high spindown power, nearby gamma-ray pulsars. We also update some population distribution plots in preparation for the 2nd Fermi LAT gamma-ray Pulsar Catalog.
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Taxonomy
TopicsPulsars and Gravitational Waves Research · Geophysics and Gravity Measurements · Radio Astronomy Observations and Technology